26LS3500, 26LS350S, 26LS350T, 26LS3510, 26LS3590, 26LS359S, 26LS359T, 26LS3700 (CHASSIS:LD21A) - LG TV Service Manual (repair manual). Page 13

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* Manual W/B process using adjust Remote control.
▪ After enter Service Mode by pushing "ADJ" key,
▪  Enter  White  Balance  by  pushing  "►"  key  at  "8.  White 
Balance".
*  After you finished all adjustments, Press "In-start" key and 
compare Tool option and Area option value with its BOM, if 
it  is  correctly  same  then  unplug  the AC  cable.  If  it  is  not 
same, then correct it same with BOM and unplug AC cable.
For correct it to the model's module from factory Jig model.
*  Push  the  "IN  STOP"  key  after  completing  the  function 
inspection. And  Mechanical  Power  Switch  must  be  set 
“ON”.
4.2. EYE-Q function check
(1) Turn on TV.
(2) Press EYE key of Adjustment remote control.
(3)  Cover the Eye Q II sensor on the front of the using your 
hand and wait for 6 seconds.
(4)  Confirm  that  R/G/B  value  is  lower  than  10  of  the  "Raw 
Data (Sensor data, Back light)". If after 6 seconds, R/G/B 
value is not lower than 10, replace Eye Q II sensor.
(5)  Remove your hand from the Eye Q II sensor and wait for 6 
seconds.
(6)  Confirm  that  "ok"  pop  up.  If  change  is  not  seen,  replace 
Eye Q II sensor.
4.3. Outgoing condition Configuration
■  When  pressing  IN-STOP  key  by  SVC  remocon,  Red  LED 
are blinked alternatively. And then automatically turn off.
(Must not AC power OFF during blinking)
5. HI-POT Test
5.1. HI-POT auto-check preparation
-  Check the POWER cable and SIGNAL cable insertion condition
5.2. HI-POT auto-check
(1)  Pallet moves in the station. (POWER CORD / AV CORD is 
tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next proc-
ess automatically.
5.3. Checkpoint
(1) Test voltage
- Touchable Metal : 3KV / min at 100mA
- SIGNAL : 3KV / min at 100mA
(2) TEST time: 1 second. (case : mass production )
(3) TEST POINT
- Touchable Metal => LIVE & NEUTRAL : Touchable Metal.
- SIGNAL => LIVE & NEUTRAL : SIGNAL.
6. Model name & Serial number D/L
▪ Press "Power on" key of service remote control.
(Baud rate : 115200 bps)
▪ Connect USB to RS232 Signal Cable to USB Jack.
▪ Write Serial number.
▪ Must check the serial number at the Diagnostics of SET UP menu.
  (Refer to below.)
6.1. Signal Table
CMD : A0h
LENGTH : 85~94h (1~16 bytes)
ADH : EEPROM Sub Address high (00~1F)
ADL : EEPROM Sub Address low (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 +...+ Data_n
Delay : 20ms
6.2. Comand Set
* Description
FOS Default write : <7mode data> write
Vtotal,  V_Frequency,  Sync_Polarity,  Htotal,  Hstart,  Vstart,  0, 
Phase
Data write :  Model Name and Serial Number write in EEPROM,.
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. Area Option
7. ADC Calibration
8. White Balance    
         ►
9. 10 Point WB
10. Test Pattern
11. EDID D/L
12. Sub B/C
13. Touch Sensitivity Setting
White Balance
Color Temp.
R-Gain
G-Gain
B-Gain
R-Cut
G-Cut
B-Cut
Test-Pattern
Backlight
Reset
Cool
172
172
192
64
64
64
ON
100
To Set
 
 
 
 
CMD
LENGTH
ADH
ADL
DATA_1
. . .
Data_n
CS
DELAY
Adjust mode
CMD(hex)
LENGTH(hex)
Description
EEPROM WRITE
A0h
84h+n
n-bytes Write (n = 1~16)
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